Chain drive.



E. SCHNEIDER. CHAIN DRIVE. APPLICATION man Junezl. me.

A TTORNEY Patented Mar. 5, 1918. y

llNltTED STATES PATENT OFFICE.

EBERHARD SCHNEIDER, 0F NEW YORK, IT. Y.

CHAIN DRIVE.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Original application filed February 19, 1914, Serial No. 819,607. Divided and this application filed .Tune 21,

To all whom it may concern:

Be it known that l, Ennninxun SCHNEIDER, a citizen oil the United States, and a resident of the borough ol Manhattan, in the county of New York and State ot' New York, have invented certain new and useful Improve niente in Chain Drives, oil which the following is a specification.

rl`liis invention relates to a chain drive which is adapted to mechanisms with shafts inclined to each other. lt is particularly adapted to moving1 picture projecting inachines and cameras. ln the present application the invention is shown with a moving picture projecting apparatus.

Figure l represents an elevation of the traine plate of a moving picture projecting apparatus with the invention incorporated therewith; Fig'. 2 shows a top plan view el Fig. l with a partial section on the line 2, 2 ot Fig. l; Fig. 3 represents an enlarged elevation of a detail; Fig. is a right hand side view of Fig. 3; Fig. 5 shows an enlarged elevation of a detail; llig. 6 is a top plan View ot' Fig. 5 and liig. 7 is a partial section of Fig. 6 on the line 7, 7.

A 'traine plate 2O oit a moving picture pro jecting apparatus has 'formed therewith the journal brackets 2l, 22. A. supporting traine is shown with the :member having; the journal bracket 26 and the ineniber 27 hai'- ing the journal bracket 28, a hinge bolt 30 extending through the bearings 21, 22, 26 and 28, thereby enabling' the iframe plate 2() to swing relatively to the supporting traine. .tin opening 32 is formed in the iframe plate 20 Jfor the spindle 33, that carries at one end the shutter 3i. A sprocket pinion 36 is lastened to the other end of the spindle 33.

l pivot 40 is supported in the plate 20. in adjusting' arin lll with the hili'urcated lug 42 is fastened to one end ol" said pivot on one side o'l the i'ranie plate 20 and an arm 45 is 'fastened to the other end ci the pivot ll() and on the opposite side ot the said :trarne plate. The spindle 33 is supported on the arno 45. A washer 4:6 is supported on the spindle 83 and the latter is engaged hy the hiturcated lug e2. rinl arin /l is pivoted on the pivot l() and has journaled on its swinging end the guide roller 50. A lug 5l on the arm l1-8 can engage Serial No. 104,866.

the arno l5. By means of the adjusting arni il the sprocket pinion 36 and guide roller can be located in different positions.

From the frame plate 2O extends a bracket 53 that'carries a pin 5a that has a threaded end Ator the wing nut 55. A sprocket drum 56 with a pulley 57 and the sprocket wheel 58 is journaled on the pin 5i.

From the frame plate 20 extends preterably at an angle el. fortydive degrees the journal bracket 60 to which is journaled the upper sprocket drums 61 and 62 and sprocket wheel 63. Both the said sprocket wheels 58 and 63 have 'orined on their peripheries the curved hearing surfaces 65, and notches 66 are formed in the ridges between said surfaces. The said notches engage the links of Vthe chain to be described. A bracket 70 extends from the i'raine plate 20. A pivot 71 extends from the bracket 7 0 on which is journaled a guide roller 72. An arm 73 extends from the pivot 71 and has pivoted to its swinging end a clamping roller 74.

A bracket 75 extends from the traine plate 2O and adjustably supports a pivot 76, on which latter is journaled a guide pulley 77.

The sprocket chain comprises the hollow balls 78, flexibly connected by thc links 79 having' upset ends SO.

ln the manufacture of the balls 78 they are split on the line 82 to enable the links 79 to be located in place. The chain extends under the sprocket wheel 58 passes up under the guide pulley 77 and from thence over the sprocket wheel 63, and then extends between the guide roller 50 and the sprocket pinion 36, and from the latter returns to the sprocket wheel 58. A guide sector 85 extends from the traine plate 20 for the adjusting arm lll.

The operation of the invention is evident from the description or' the parts, and it will he noted that the chain with the balls 78 elliciently connects the sprocket wheels 58 and 63 which have their axes inclined to each other. The engagement of the links 7l) with the notches 66 securely connects the chain with the sprocket wheels 58 and 63.

This application is a division of a pend ing application of the applicant for moving picture projecting apparatus, 819,607, tiled February 19th, 1914:.

Lemme spi'ooke; pinion7 ineens lo leemte the pinion in diierent positions, :i @hein `connerating; seid Wheels and pinion, a guide rolleiI fof the chain coacting with seid pinion, ine-ns -to "locatethei'ollei'iin dierent positions and a` guide pulley for the chain located between h'e sprocket wheels.

`Signed at the borough of Manhatten, in

the County of New York and. Stirtool ANew York, this lthdzuy `olf Many, A. D. 1916. EBERHARD SGHNEDER.

Witnesses t i Afnn BONNEVILLE, VICTOR MILLER Copiesmf: 'thispatent may heobtenelzl for live cents eeen, bylac'lklressiug the Commissioner-o1 Patents,

Washington, lh ik 

